Capcom's business model is hardly the same as EA's.
the business model for any publisher is to make money - and publishers know that if they can get a successful franchise up and running then they will make that money.
don't make out that capcom aren't guilty of doing this - they are as guilty as any publisher on the planet - hence the countless streetfighter sequels/spinoffs (puzzle fighter 2 is a sf spinoff), the countless biohazard sequels/remixes/re-releases/spinoffs etc etc - Capcom are as sequel happy as EA are (arguably you could say they are even more so). Do you really think we will ever see a viewtiful joe 2 if this one doesn't sell to expectations?
your final point really hit the nail on the head ...
I'd be hard pressed to find another publisher who constantly creates new franchises.
not wanting to seem as though i am picking on Capcom alone here - both Sega and Namco are franchise-happy as well - just do a search on how many games have been released in the Sonic franchise, or VF franchise (in fact you could pick one from dozens of franchises that Sega have on their books) - and lets not pretend that Namco are innocent ....
all publishers need their franchises to help finance the games which don't sell that well - and they want that big franchise all the time. Look how the Tombraider franchise helped finance Eidos - which helped finance games such as Deus Ex which now has its own franchise which will lead to....
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